Ir codes, How to connect, Remote control ir codes – LG 3230DC User Manual

Page 107: Appendix, Configuration of frame, Lead code, Repeat code, Output waveform

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APPENDIX

107

IR CODES

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Configuration of frame

1st frame

Repeat frame

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Lead code

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Repeat code

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Biitt d

deessccrriip

pttiio

onn

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FFrraam

mee iinntteerrvvaall:: T

Tff

The waveform is transmitted as long as a key is depressed.

C0 C1 C2 C3 C4 C5 C6C7 C0 C1 C2 C3 C4 C5 C6C7 D0 D1 D2 D3 D4 D5 D6D7 D0 D1 D2 D3 D4 D5 D6D7

Lead code

Low custom code

High custom code

Data code

Repeat code

4.5 ms

9 ms

2.25 ms

9 ms

0.55 ms

0.56 ms

1.12 ms

0.56 ms

2.24 ms

Tf=108ms @455KHz

Bit ”0”

Bit ”1”

1. How to Connect

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Connect your wired remote control to the Remote Control port on the TV.

2. Remote Control IR Codes

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Output waveform

Single pulse, modulated with 37.917KHz signal at 455KHz

Carrier frequency

FCAR = 1/TC = fOSC/12
Duty ratio = T1/TC = 1/3